21440474

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{4663}}^1$

素因数の和:4706

約数の個数: 24

約数和(自身を含む): 37218720

約数和(自身を除く): 15778246

約数列:

[1, 2, 11, 19, 22, 38, 121, 209, 242, 418, 2299, 4598, 4663, 9326, 51293, 88597, 102586, 177194, 564223, 974567, 1128446, 1949134, 10720237, 21440474]

約数ペア:

[(1, 21440474), (2, 10720237), (11, 1949134), (19, 1128446), (22, 974567), (38, 564223), (121, 177194), (209, 102586), (242, 88597), (418, 51293), (2299, 9326), (4598, 4663)]